> Maybe we've gone full circle. I just bought an $11 part on eBay. I it is > a CPLD. Like an FPGA but smaller and much less expensive and easier to > use. The programming software has a mode where yu can call up a library > of old 74LSxxx parts and drop them on a canvas and draw lies between pins. > They have other functional blocks too, just see of them have the old 7400 > numbers. I did something silly wired a bunch some LEDs to a 4-bit > counters and watch in count in binary. The 7400 series versions "Hello > World" but now I can do that with just one chip. The little CLPD can > simulate maybe 100 7400 type chips and they can be clocked at 50MHz > > SO it is the one chip solution that you wanted but the old SSI based > solution that engineer wanted t build.
Yes this is the device to build a SSI or or SPI router. > My use for it was counting encoder pluses up to about 1MHz. but I found I > could do that with a microcontroler for 1/3rd the cost and size. Or 48MHz I think for less than one tenth if needed. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
